Construction for pressing together cabinet parts to form a cabinet, especially a furniture cabinet

Abstract

The inventive construction for pressing together body parts to form a body, in particular a furniture body, is characterized in that the construction has the following features: a servomotor driven by at least two (1,2,3) servomotors, at least a pressing element (20) and / or a pressing device (4) comprising a pressing element and / or at least a support element (21) and / or a transport element (6) comprising a support element (22), wherein the servomotors (1,2,3) are controllable and / or regulated or are controlled in operation and / or regulated by means of a synchronous control device (7) and / or synchronous control device (7).

Description

I) State of the art:

[0001] Conventional fully automatic continuous carcass presses operate using hydraulic, pneumatic or electric drives or pressing systems.

[0002] Conventional hydraulic cabinet presses are primarily used by home and office furniture manufacturers for the production of furniture and cabinet bodies. They operate using hydraulic motors, pumps, valves, hoses, and cylinders. The hydraulic system has the highest pressing force of all current press systems, but requires additional space due to the large hydraulic oil reservoir. It is based on an environmentally unfriendly, energy-intensive system, and is also noisy and slow.

[0003] Conventional pneumatic cabinet presses are primarily used by bathroom and kitchen furniture manufacturers for the production of cabinet bodies. The pneumatic system operates via large pressure cylinders, which are bulky and therefore require large and tall machine structures. Furthermore, the system is slow, consumes a lot of compressed air, and is also very energy-intensive.

[0004] Conventional electric cabinet presses, which are also used for cabinet production, are based on chain-driven motors and operate via a transformer that supplies multiple voltages to the motors. Compared to hydraulic and pneumatic systems, the common electric press system generates the lowest pressing force during the pressing process, exhibits frequent wear on the chain drive, and exhibits inaccuracies when pressing at angles (90°). II) Representation of the construction according to the invention:

[0005] The aim of the construction according to the invention is to minimize or avoid the above-mentioned problems by creating a high level of reproducibility in the pressing of carcass parts into a carcass, in particular a furniture carcass, while being energy-efficient, relatively wear-free and low-maintenance.

[0006] All of the problems described above in the manufacture of the body or in the manufacturing techniques (hydraulic, pneumatic, electrical) are solved by the invention specified in the claim with regard to the construction (claims 1-21) and the use (claims 22 + 23). III) Advantages of the construction according to the invention:

[0007] With the synchronous operation integrated in the construction according to the invention and used as a fully automatic, self-adjusting continuous carcass press, 1. created the possibility to produce all cabinet / furniture carcasses of all furniture manufacturers (bathroom, kitchen, living room and office furniture manufacturers) on a single system. 2. the possibility of adapting or adjusting the pressure of the press precisely to each body material and each body size. 3. the power and compressed air consumption of the carcass press is minimized (high energy efficiency). 4. Reduces oil and grease consumption for lubricating spindles and racks (improved environmental compatibility). 5. minimizes noise during the pressing process. 6. the design of the body press is optimized (minimal space requirement). 7. the wear of the carcass press components is minimized and the longevity of the machine is increased. 8. The pressing process has been improved in terms of speed and precision when pressing at an angle (90°). 9. the user-friendliness of the carcass press is optimized. IV) Design of the construction according to the invention (FIG. 1-5):

[0008] An advantageous embodiment of the construction according to the invention is shown in the attached appendix ( Fig. 1-5), where the figures show / illustrate the following: Fig. 1: a perspective sketch of an embodiment of the construction according to the invention Fig. 2: a perspective sketch of individual elements to create a vertical print Fig. 2.1: another perspective sketch as a partial view of the Fig. 2 components shown Fig. 2.2: another perspective sketch of elements for the construction of a vertical print Fig. 2.3: another perspective sketch of elements for the construction of a vertical print Fig. 3: a perspective sketch of elements for the construction of a horizontal print Fig. 3.1: another sketchy perspective view of elements for the construction of the horizontal pressure Fig. 4: a perspective view of elements for lateral support Fig. 4.1: a sketchy perspective view of a partial view of Fig. 4 Fig. 5: a perspective sketch of elements for conveying.

[0009] The Fig. 1 The elements labelled I are shown functionally for the generation of vertical pressure. The same applies to the elements marked II with regard to the horizontal pressure, to the elements marked III with regard to the lateral stops and to the elements marked IV with regard to the conveying or feed drive. V) Constructive differentiation of the inventive design compared to conventional continuous carcass presses (see also FIGS. 1-5):

[0010] 1. The vertical pressure of the synchronous continuous case press is generated by two opposing, inverter-controlled servo motors (1) with additional worm gears (102), each of which synchronously drives a shaft (103). The power is transmitted by gears (104), each running on two racks (105). Each servo motor is mounted on a pressure block (106). These pressure blocks move with the side uprights (107) and stop automatically where the vertical pressing force is required. The pressure blocks (106) are each mounted on two shoulders (108), which are guided up and down the side uprights via bearings (109 / 110 / 111 / 112). The upper pressure plate (113) is driven by four further bearings (114) mounted on the shoulders (108).In addition, the pressure plate (113) is guided over two shafts (115) which run the entire length of the pressure plate (113) and are in turn guided by gears (116) on the outer sides via racks (117). The individual control of the synchronous operation is carried out via inverters with PLC control (keyboard and screen).

[0011] 2. The horizontal pressure of the carcass press is generated by two inverter-controlled servo motors (118) with planetary gears (119). The planetary gears (119) each drive a recirculating ball screw (120) with two gears each (anticlockwise: 121 and clockwise: 122). Each of these gears (121 and 122) is connected to a travel carriage (123). The travel carriages (123) are each guided by a crossbeam (124) with guide rails (125). The crossbeams (124) are connected to the frame inlet (126) and the frame outlet (127). The lateral uprights (107) are attached to the travel carriages (123), which open and close the carcass press and transmit the horizontal pressure.

[0012] 3. The precise positioning of the lateral stops (128 a / b / c) is achieved via two inverter-controlled servo motors (2, 129) with conventional gears (130). Toothed belt pulleys (132) are mounted on the shafts (131) of the gears (130), each driving a toothed belt (133). These toothed belts (133) are guided over several guide rollers (134) and additional toothed belt pulleys (135) and are connected to the lower stops (128a) on both sides. The upper stops (128c) are each positioned via two air cylinders (136) and a solenoid valve (137) each. The middle stops (128b) are driven along with the lower stops (128a) and are each precisely positioned by two brake cylinders (138), which in turn are controlled by solenoid valves (139), depending on the cabinet type and operator requirements. The interaction of all components creates the optimal horizontal pressure on the cabinet body.

[0013] 4. The feed drive for the conveyor belt (22, 142) is generated by an inverter-controlled servo motor (3, 140) with a conventional gear (141). The conveyor belt (22, 142) runs over a conveyor shaft (143) and a deflection roller (144). The conveyor shaft (143) and deflection roller (144) are attached to the conveyor belt support (146) with bearing blocks (145). To ensure optimal transport of the cabinet carcasses and prevent the conveyor belt (22, 142) from sagging, two additional coated chipboards (147) are mounted on the conveyor belt support (146) and additional tension rollers (148) are mounted below the conveyor belt support (146). The conveyor belt (142) is tensioned by the holders of the deflection roller (149) at the inlet of the carcass presses. VI) Functionality of the inventive construction as a fully automatic, self-adjusting continuous carcass press with synchronous operation

[0014] The operator takes the individual parts of the cabinet body and assembles them by hand on the pre-assembly line of the cabinet press. Once this process is complete, they press a foot switch or a "retract" button on the control panel.

[0015] The cabinet body is automatically moved into the press on the conveyor belt. At the infeed, the body is measured for height and length using light barriers; simultaneously, the horizontal and vertical pressure beams automatically position themselves to the cabinet's dimensions. After the measurement, the body moves along the conveyor belt to the center of the press and stops. As soon as the body reaches its position, the upper pressure beam moves down and stops just above the body. Depending on the body type, the side stops then automatically position themselves to the cabinet's dimensions.

[0016] The cabinet is now pressed horizontally (sideways) until the previously set pressure is reached (information on horizontal and vertical pressure, as well as any information on the number of shelves, is entered manually into the program by the operator before commissioning the press; alternatively, this can be done automatically by installing a barcode scanner). Vertical pressing then takes place. The duration of the pressing process and the pressure are also defined by the information previously entered by the operator.

[0017] After the pressing process, the vertical and horizontal pressure bars open one after the other so that the body is released and is transported out of the press via the conveyor belt. List of reference symbols for FIG. 1 - FIG. 5 I Legends KE body inlet KA body outlet Ⓧ Part is outside the field of vision / on the opposite side of the machine

Claims

[1] The construction according to the invention for pressing carcass parts to form a carcass, in particular a furniture carcass, characterized by that the construction has the following features: a drive unit driven by at least two (1, 2, 3) servo motors, at least a pressing device (4) having a pressing element (20) and / or at least a supporting device (5) having a supporting element (21) and / or a transport device (6) having at least one transport element (22), wherein the servo motors (1, 2, 3) are controllable and / or regulatable or are controlled during operation and / or regulated by means of a synchronous control device (7) and / or synchronous regulation device (7). [2] Construction according to claim 1, characterized by that the synchronous control device and / or synchronous regulation device (7) is designed as a master-slave control or master-slave regulation. [3] Construction according to one of claims 1 to 2, characterized by that the system control device (7) and / or system regulating device (7) is / are designed such that the synchronicity concerns the synchronous motors (1, 2, 3) of the pressing device (4) and / or the supporting device (5) and / or the transport device (6). [4] Construction according to one of claims 1 to 3, characterized by that the pressing device (4) exerts pressure on the body parts to be pressed in up to three directions which are essentially perpendicular to one another. [5] Construction according to claim 4, characterized by that the pressing device (4) has at least one servo motor (1) per direction. [6] Construction according to claim 5, characterized by that the pressing device (4) has at least two servo motors (1,1) per direction. [7] Construction according to one of claims 1 to 6, characterized bythat the supporting device (5) supports the body parts in up to three directions which are essentially perpendicular to one another during operation. [8] Construction according to claim 7, characterized by that the supporting device (5) has at least one servo motor (2) per direction. [9] Construction according to claim 8, characterized by that the supporting device (5) has at least two servo motors (2,2) per direction. [10] Construction according to one of claims 1 to 9, characterized by that the transport device (6) conveys the body parts in up to three directions which are essentially perpendicular to one another during operation. [11] Construction according to claim 10, characterized by that the transport device (6) has at least one servo motor (3) per direction. [12] Construction according to claim 11, characterized by that the transport device (6) has at least two servo motors (3,3) per direction. [13] Construction according to one of claims 1 to 12, characterized by that it is set up in such a way that the at least two servo motors (1,1; 2,2; 3,3) of the pressing device (4) and / or the supporting device (5) and / or the transport device (6) are synchronously controlled and / or synchronously regulated. [14] Construction according to one of claims 1 to 13, characterized by that it has at least one measuring device (8) for detecting the dimensions and / or position data of the body parts and / or the body. [15] Construction according to one of claims 1 to 14, characterized by that it has at least one reading device for detecting data relating to the body parts to be pressed and / or the body. [16] Construction according to one of claims 14 to 15, characterized by that it is set up in such a way that the recorded data is taken into account for the operation of the structure. [17] Construction according to claim 16, characterized by that it is set up in such a way that the recorded data are taken into account for the synchronous control and / or the synchronous regulation. [18] Construction according to one of claims 16 to 17, characterized by that the transport device (6) processes the recorded data in such a way that at least some of the body parts to be pressed are transported by means of the at least one transport element (22) to a working position taking into account the dimensions and / or positions of the body parts. [19] Construction according to one of claims 16 to 18, characterized by that the supporting device (5) processes the recorded data in such a way that at least some of the body parts to be pressed are supported by means of the at least one supporting element (21) taking into account the dimensions and / or positions of the body parts. [20] Construction according to one of claims 16 to 19, characterized bythat the pressing device (4) processes the recorded measurement data in such a way that at least some of the body parts to be pressed are pressed together by means of the at least one pressing element (20) taking into account the dimensions and / or positions of the body parts. [21] Construction for pressing carcass parts to a carcass, in particular a furniture carcass, characterized by that the construction according to one of claims 1 to 20 is used. [22] Use of a construction according to one of claims 1 to 20 as a carcass press. [23] Use according to claim 22, is characterized by that the construction according to one of claims 1 to 20 is used as a furniture carcass press.

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